公开(公告)号：US20240007162A1

公开(公告)日：2024-01-04

申请号：US17997705

申请日：2022-06-30

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Hao XU ,  Liangming WU ,  Chenxi HAO ,  Chao WEI

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/06968 ,  H04L5/0023 ,  H04L5/0048

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for configuring CSI-RS repetitions for CSI measurement in high Doppler scenarios. An example method generally includes receiving, from a network entity, a configuration identifying channel state information (CSI) reference signal (RS) (CSI-RS) repetitions over which a CSI report is to be generated, receiving CSI-RS repetitions according to the configuration, measuring CSI based on the received CSI-RS repetitions, and transmitting the CSI report including the measured CSI to the network entity.

公开(公告)号：US20230421326A1

公开(公告)日：2023-12-28

申请号：US18038947

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI ,  Hwan Joon KWON ,  Ahmed ELSHAFIE

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0691 ,  H04B7/0628

Abstract: A user equipment may be configured to assist channel reconstruction using partial spatial sounding. In some aspects, the user equipment (UE) may transmit, to another device, correlation capability information indicating a sounding reference signal (SRS) grouping capability of the UE, and receive, from the other device, reference signal (RS) configuration information for configuring a sounding procedure to be performed by the UE. Further, the UE may transmit a reference signal to the other device over a reference antenna port of the UE to allow the other device to determine channel information for another antenna port of the UE, and receive data from the other device based on the channel information.

公开(公告)号：US20230403118A1

公开(公告)日：2023-12-14

申请号：US18246319

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Kexin XIAO ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Bo CHEN ,  Runxin WANG ,  Yeliz TOKGOZ ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0456

CPC classification number: H04L5/0051 ,  H04L5/0094 ,  H04B7/0628 ,  H04B7/0602 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating a first number of one or more transmit antennas supported by the UE for antenna switching and a second number of ports supported for uplink transmission that exceeds the first number of one or more transmit antennas. The UE may receive, based on the capability message, a sounding reference signal (SRS) configuration indicating a mapping between each SRS resource or SRS resource group and a respective bit sequence of a set of bit sequences. The UE may receive a control message comprising one or more bit sequences of the set of bit sequences indicating one or more SRS resources or an SRS resource group based on the mapping. The UE may transmit one or more SRS signals based on the control message.

公开(公告)号：US20230403117A1

公开(公告)日：2023-12-14

申请号：US18245027

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Yu ZHANG ,  Alexandros MANOLAKOS

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0091

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive a medium access control (MAC) control element (MAC CE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource. The mobile station may receive downlink control information (DCI) indicating a DCI configuration associated with the SRS resource. The mobile station may selectively transmit SRS information associated with the SRS resource based at least in part on a time of receipt of the MAC CE. Numerous other aspects are provided.

公开(公告)号：US20230403113A1

公开(公告)日：2023-12-14

申请号：US18330050

申请日：2023-06-06

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Alexandros MANOLAKOS ,  Tao LUO ,  June NAMGOONG

IPC: H04L5/00 ,  H04L1/18

CPC classification number: H04L5/005 ,  H04L1/18 ,  H04L5/0007

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing channel state information (CSI) reference signals (CSI-RS). An exemplary method includes determining a configuration of channel state information reference signals (CSI-RSs), wherein the configuration indicates a set of resource elements (REs) to be used for CSI-RSs and a first mapping of CSI-RS ports to the set of REs; sending an indication of the configuration of the CSI-RSs; and transmitting the CSI-RSs according to the determined configuration.

公开(公告)号：US20230354267A1

公开(公告)日：2023-11-02

申请号：US17661519

申请日：2022-04-29

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Yu ZHANG ,  Peter GAAL

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/02 ,  H04W72/042 ,  H04L5/0051

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of at least one sounding reference signal (SRS) resource set including at least five SRS resources or at least two SRS resource sets collectively including the at least five SRS resources, each SRS resource, of the at least five SRS resources, corresponding to an SRS port of at least five SRS ports. The UE may receive information indicating a set of selected SRS resources, including the at least five SRS resources, for an uplink transmission. The UE may transmit the uplink transmission based at least in part on the set of selected SRS resources. Numerous other aspects are described.

公开(公告)号：US20230344498A1

公开(公告)日：2023-10-26

申请号：US17727506

申请日：2022-04-22

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Yu ZHANG ,  Runxin WANG ,  Hyojin LEE

IPC: H04B7/06

CPC classification number: H04B7/0691 ,  H04B7/0608 ,  H04B7/0634

Abstract: Aspects relate to configuring active groups of antenna ports. An apparatus may support different groups of antenna ports. One or more of these groups may be designated as active (e.g., for a scheduled transmission). In some examples, a first apparatus may send to a second apparatus an indication of the active groups. The second apparatus may then use the active groups for a transmission.

公开(公告)号：US20230328660A1

公开(公告)日：2023-10-12

申请号：US18042260

申请日：2020-10-12

Applicant: QUALCOMM Incorporated

Inventor： Jinseok CHOI ,  Yu ZHANG ,  Saeid SAHRAEI ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Tingfang JI ,  Naga BHUSHAN

IPC: H04W52/32 ,  H04W52/36 ,  H04W52/08 ,  H04W52/10

CPC classification number: H04W52/325 ,  H04W52/365 ,  H04W52/08 ,  H04W52/10

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a sounding reference signal transmission power of a user equipment (UE) and may communicate with the UE according to the determined sounding reference signal transmission power. In some examples, the base station may transmit signaling to the UE indicating a switch from a first power control mode to a second power control mode. The UE may transmit, to the base station and in the second power control mode, a power headroom report which the base station may use to estimate the sounding reference signal transmission power. In other examples, the base station may transmit a request for one or more reports that indicate the sounding reference signal transmission power based on the base station operating in a closed-loop power control mode. The UE may transmit the one or more reports to the base station.

公开(公告)号：US20230291440A1

公开(公告)日：2023-09-14

申请号：US18006349

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS

IPC: H04B7/01 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04B7/01 ,  H04W24/10 ,  H04L5/0051

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify an uplink resource for reporting a Doppler measurement to a base station. The UE may determine a reference signal set precedes a reference point associated with the uplink resource prior to performing Doppler measurements based on the reference signals in the reference signal set. Each reference signal in the reference signal set may occur no later than a channel state information (CSI) reference resource, or an offset relative to the uplink resource defined by a number of symbols. The UE may determine the Doppler measurement based on the reference signal set, or multiple reference signal sets and may transmit the Doppler measurement to the base station in the uplink resource.

公开(公告)号：US20230261831A1

公开(公告)日：2023-08-17

申请号：US18012512

申请日：2021-03-31

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Hao XU

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0639 ,  H04B7/0626

Abstract: A configuration to configure a UE to receive a plurality of CSI-RS ports where different ports may be transmitted on different sets of RBs within the frequency band of the CSI-RS. The apparatus receives CSI-RS through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports are transmitted on a different set of RBs. The apparatus reports at least one CSI based on a CSI-RS pattern.